Last frost date in McMinnville, OR
Expect the last frost in McMinnville around April 5. Frost after April 27 happens in only one year out of ten. The first fall frost usually arrives about November 7, which leaves 216 frost-free days. An early freeze before October 20 happens one year in ten.
- Safe after (10% risk)
- Apr 27
- Average first frost
- Nov 7
- Frost-free season
- 216 days
- Hard freeze (28°F) ends
- Feb 20
Frost possible in low spots Thu night, low 36°F
Earlier than usual: the average first frost here is November 7.
National Weather Service forecast, updated Oct 22, 12:24 UTC
- ThuOct 2236°possible frost
- FriOct 2335°possible frost
- SatOct 2438°
- SunOct 2541°
- MonOct 2639°
- TueOct 2739°
Planting calendar for McMinnville
Windows count forward or back from the average frost dates above. Click a crop for dates across Oregon.
TomatoesApr 12–Apr 26
PumpkinsApr 19–May 3
SunflowersApr 5–Apr 26
CucumbersApr 19–Apr 26
CornApr 12–Apr 26
Sweet potatoesApr 26–May 10
WatermelonApr 19–May 3
Green beansApr 12–May 3
ZucchiniApr 12–Apr 26
OkraApr 26–May 10
PeppersApr 19–May 3
BasilApr 12–Apr 26
Butternut squashApr 12–Apr 26
CantaloupeApr 19–May 3
EggplantApr 19–May 3
PotatoesMar 8–Mar 22
OnionsFeb 22–Mar 15
CarrotsMar 15–Apr 19
LettuceMar 22–Apr 12
BroccoliMar 8–Mar 22
BeetsMar 8–Apr 19
PeasFeb 22–Mar 8
CabbageMar 8–Mar 22
RadishesMar 1–Apr 12
Brussels sproutsMar 22–Apr 5
SpinachFeb 22–Mar 15
CilantroMar 22–Apr 12
KaleMar 8–Mar 22
Collard greensMar 8–Mar 22
TurnipsMar 8–Mar 22
DillApr 5–Apr 19
CeleryApr 12–Apr 19
CauliflowerMar 22–Apr 5
LeeksMar 22–Apr 5
Swiss chardMar 22–Apr 19
ParsleyMar 22–Apr 12
Tulip bulbsOct 24–Nov 28
GarlicOct 17–Nov 21
Daffodil bulbsOct 10–Nov 21
StrawberriesMar 8–Mar 22
AsparagusMar 8–Mar 22Frost probabilities
| Threshold | Spring, 90% chance later | Spring, 50% | Spring, 10% | Fall, 10% chance earlier | Fall, 50% | Fall, 90% |
|---|---|---|---|---|---|---|
| Light frost, 32°F | Mar 5 | Apr 5 | Apr 27 | Oct 20 | Nov 7 | Dec 1 |
| Hard freeze, 28°F | Jan 3 | Feb 20 | Mar 20 | Nov 5 | Nov 28 | Jan 2 |
Read the spring 10% column as the date after which only one year in ten still gets frost. That is the safer date for tomatoes, peppers and basil.
Where these numbers come from
NOAA station Mc Minnville (USC00355384) sits 1.6 miles from the center of McMinnville at 155 feet. Its averages cover 1991 to 2020. Low spots, valleys and open fields can keep getting frost a week or two after the station stops; city centers and lakeshores usually get less of it.
Questions
When is the last frost in McMinnville, OR?
The average last frost date in McMinnville is April 5, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after April 27.
When is the first frost in McMinnville?
The first frost in fall usually comes around November 7. One year in ten it arrives before October 20.
How long is the growing season in McMinnville?
About 216 days between the average last and first frost.
When should I plant tomatoes in McMinnville?
Plant tomato seedlings outside from April 12 to April 26. Start seeds indoors six to eight weeks earlier.
Nearby in Oregon
- NewbergMar 21
- KeizerApr 3
- WoodburnMar 16
- HayesvilleApr 3
- SherwoodMar 21
- SalemApr 3
- WilsonvilleMar 18
- Forest GroveApr 16
- TualatinApr 1
- TigardApr 1
- AlohaFeb 11
- HillsboroApr 16